./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a12f7bc3d94ecbf6fd25030121af7b8c4b258a536df3d333f191aa6387ec429b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 06:54:59,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 06:54:59,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 06:54:59,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 06:54:59,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 06:54:59,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 06:54:59,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 06:54:59,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 06:54:59,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 06:54:59,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 06:54:59,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 06:54:59,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 06:54:59,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 06:54:59,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 06:54:59,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 06:54:59,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 06:54:59,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 06:54:59,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 06:54:59,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 06:54:59,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 06:54:59,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 06:54:59,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 06:54:59,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 06:54:59,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 06:54:59,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 06:54:59,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 06:54:59,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 06:54:59,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 06:54:59,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 06:54:59,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 06:54:59,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 06:54:59,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 06:54:59,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 06:54:59,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 06:54:59,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 06:54:59,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 06:54:59,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 06:54:59,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 06:55:00,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 06:55:00,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 06:55:00,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 06:55:00,007 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-11-23 06:55:00,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 06:55:00,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 06:55:00,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 06:55:00,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 06:55:00,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 06:55:00,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 06:55:00,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 06:55:00,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 06:55:00,056 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 06:55:00,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 06:55:00,057 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 06:55:00,058 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 06:55:00,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 06:55:00,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 06:55:00,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 06:55:00,058 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 06:55:00,059 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 06:55:00,059 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 06:55:00,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 06:55:00,059 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 06:55:00,059 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 06:55:00,059 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 06:55:00,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 06:55:00,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 06:55:00,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 06:55:00,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:55:00,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 06:55:00,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 06:55:00,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 06:55:00,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 06:55:00,062 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-23 06:55:00,062 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-23 06:55:00,063 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-23 06:55:00,063 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-23 06:55:00,063 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-23 06:55:00,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a12f7bc3d94ecbf6fd25030121af7b8c4b258a536df3d333f191aa6387ec429b [2022-11-23 06:55:00,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 06:55:00,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 06:55:00,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 06:55:00,359 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 06:55:00,360 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 06:55:00,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c [2022-11-23 06:55:03,327 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 06:55:03,551 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 06:55:03,552 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c [2022-11-23 06:55:03,558 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/data/c2212ed0d/2777a65e4f674d3b94585966924ae77b/FLAG55b16c2e9 [2022-11-23 06:55:03,573 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/data/c2212ed0d/2777a65e4f674d3b94585966924ae77b [2022-11-23 06:55:03,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 06:55:03,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 06:55:03,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 06:55:03,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 06:55:03,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 06:55:03,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64200484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03, skipping insertion in model container [2022-11-23 06:55:03,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 06:55:03,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:55:03,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c[2957,2970] [2022-11-23 06:55:03,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:55:03,837 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 06:55:03,884 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c[2957,2970] [2022-11-23 06:55:03,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:55:03,900 INFO L208 MainTranslator]: Completed translation [2022-11-23 06:55:03,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03 WrapperNode [2022-11-23 06:55:03,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 06:55:03,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 06:55:03,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 06:55:03,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 06:55:03,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,957 INFO L138 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2022-11-23 06:55:03,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 06:55:03,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 06:55:03,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 06:55:03,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 06:55:03,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,985 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 06:55:03,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 06:55:03,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 06:55:03,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 06:55:03,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (1/1) ... [2022-11-23 06:55:03,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:55:04,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:55:04,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 06:55:04,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 06:55:04,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 06:55:04,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 06:55:04,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 06:55:04,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 06:55:04,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 06:55:04,087 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 06:55:04,087 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 06:55:04,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 06:55:04,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 06:55:04,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 06:55:04,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 06:55:04,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 06:55:04,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 06:55:04,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 06:55:04,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 06:55:04,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 06:55:04,090 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 06:55:04,223 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 06:55:04,225 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 06:55:04,554 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 06:55:04,650 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 06:55:04,655 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 06:55:04,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:55:04 BoogieIcfgContainer [2022-11-23 06:55:04,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 06:55:04,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 06:55:04,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 06:55:04,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 06:55:04,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:55:03" (1/3) ... [2022-11-23 06:55:04,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8566eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:55:04, skipping insertion in model container [2022-11-23 06:55:04,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:03" (2/3) ... [2022-11-23 06:55:04,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8566eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:55:04, skipping insertion in model container [2022-11-23 06:55:04,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:55:04" (3/3) ... [2022-11-23 06:55:04,668 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2022-11-23 06:55:04,689 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 06:55:04,689 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-23 06:55:04,689 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 06:55:04,805 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 06:55:04,852 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:55:04,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-23 06:55:04,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:55:04,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-23 06:55:04,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-23 06:55:04,917 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-23 06:55:04,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-23 06:55:04,944 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6915044e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:55:04,944 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-23 06:55:05,415 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 06:55:05,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:55:05,421 INFO L85 PathProgramCache]: Analyzing trace with hash -40033124, now seen corresponding path program 1 times [2022-11-23 06:55:05,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:55:05,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708674993] [2022-11-23 06:55:05,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:55:05,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:55:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:55:05,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:55:05,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:55:05,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708674993] [2022-11-23 06:55:05,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708674993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:55:05,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:55:05,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:55:05,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698318020] [2022-11-23 06:55:05,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:55:05,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 06:55:05,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:55:05,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 06:55:05,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 06:55:05,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:05,739 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:55:05,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 06:55:05,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:05,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:05,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 06:55:05,788 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 06:55:05,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:55:05,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2066514960, now seen corresponding path program 1 times [2022-11-23 06:55:05,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:55:05,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117257708] [2022-11-23 06:55:05,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:55:05,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:55:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:55:06,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:55:06,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:55:06,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117257708] [2022-11-23 06:55:06,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117257708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:55:06,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:55:06,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 06:55:06,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278559738] [2022-11-23 06:55:06,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:55:06,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 06:55:06,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:55:06,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 06:55:06,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 06:55:06,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:06,867 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:55:06,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 06:55:06,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:06,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:07,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:07,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 06:55:07,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 06:55:07,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 06:55:07,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:55:07,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2112968577, now seen corresponding path program 1 times [2022-11-23 06:55:07,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:55:07,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208010120] [2022-11-23 06:55:07,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:55:07,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:55:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:55:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:55:08,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:55:08,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208010120] [2022-11-23 06:55:08,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208010120] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 06:55:08,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124977219] [2022-11-23 06:55:08,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:55:08,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 06:55:08,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:55:08,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 06:55:08,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 06:55:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:55:08,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-23 06:55:08,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:55:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 06:55:08,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:55:08,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124977219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:55:08,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 06:55:08,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2022-11-23 06:55:08,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280004216] [2022-11-23 06:55:08,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:55:08,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 06:55:08,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:55:08,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 06:55:08,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-23 06:55:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:08,611 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:55:08,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 06:55:08,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:08,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-23 06:55:08,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:09,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:09,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 06:55:09,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 06:55:09,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 06:55:09,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 06:55:09,370 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 06:55:09,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:55:09,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1097119033, now seen corresponding path program 1 times [2022-11-23 06:55:09,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:55:09,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576945460] [2022-11-23 06:55:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:55:09,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:55:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:55:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:55:11,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:55:11,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576945460] [2022-11-23 06:55:11,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576945460] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 06:55:11,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512347777] [2022-11-23 06:55:11,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:55:11,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 06:55:11,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:55:11,103 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 06:55:11,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 06:55:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:55:11,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-23 06:55:11,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:55:12,277 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 06:55:12,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:55:12,969 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:55:12,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512347777] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:55:12,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 06:55:12,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 7] total 24 [2022-11-23 06:55:12,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070926090] [2022-11-23 06:55:12,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 06:55:12,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-23 06:55:12,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:55:12,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-23 06:55:12,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2022-11-23 06:55:12,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:12,974 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:55:12,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.041666666666666) internal successors, (193), 24 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 06:55:12,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:12,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-23 06:55:12,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-23 06:55:12,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:14,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:55:14,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 06:55:14,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 06:55:14,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 06:55:14,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 06:55:14,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 06:55:14,337 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 06:55:14,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:55:14,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1561746017, now seen corresponding path program 2 times [2022-11-23 06:55:14,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:55:14,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943690249] [2022-11-23 06:55:14,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:55:14,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:55:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:58:30,720 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:58:30,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:58:30,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943690249] [2022-11-23 06:58:30,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943690249] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 06:58:30,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800711975] [2022-11-23 06:58:30,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 06:58:30,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 06:58:30,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:58:30,726 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 06:58:30,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f20a00-40e6-48b0-b5f5-672bcd5681c6/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 06:58:31,996 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 06:58:31,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 06:58:32,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-23 06:58:32,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:59:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:59:22,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 07:06:02,433 WARN L233 SmtUtils]: Spent 7.85s on a formula simplification. DAG size of input: 125 DAG size of output: 113 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:06:18,913 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 118 DAG size of output: 100 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:06:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 07:06:19,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800711975] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 07:06:19,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 07:06:19,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 32, 32] total 81 [2022-11-23 07:06:19,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322743275] [2022-11-23 07:06:19,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 07:06:19,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-11-23 07:06:19,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 07:06:19,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-11-23 07:06:19,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=804, Invalid=5563, Unknown=113, NotChecked=0, Total=6480 [2022-11-23 07:06:19,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:06:19,512 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 07:06:19,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 3.876543209876543) internal successors, (314), 81 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 07:06:19,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:06:19,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-23 07:06:19,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-23 07:06:19,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-23 07:06:19,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 07:06:36,874 WARN L233 SmtUtils]: Spent 15.09s on a formula simplification. DAG size of input: 259 DAG size of output: 224 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:06:50,525 WARN L233 SmtUtils]: Spent 7.11s on a formula simplification. DAG size of input: 283 DAG size of output: 210 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:06:58,445 WARN L233 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 308 DAG size of output: 235 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:07:06,330 WARN L233 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 289 DAG size of output: 245 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:07:27,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 07:07:29,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 07:07:33,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 07:08:35,677 WARN L233 SmtUtils]: Spent 36.58s on a formula simplification. DAG size of input: 452 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 07:09:44,382 WARN L233 SmtUtils]: Spent 50.53s on a formula simplification. DAG size of input: 466 DAG size of output: 453 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)